Finding the Fourth Proportional to 292,664,821.05, 439,238,736.41 and 147,139,741.53
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Solution
The fourth proportional to 292,664,821.05, 439,238,736.41 and 147,139,741.53 is: 220,831,030.91
Step by Step Solution
- Step 1: Write the proportion equation
292,664,821.05 : 439,238,736.41 = 147,139,741.53 : x - Step 2: Convert to fraction form
292,664,821.05/439,238,736.41 = 147,139,741.53/x - Step 3: Cross multiply
292,664,821.05x = 439,238,736.41 × 147,139,741.53 - Step 4: Simplify right side
292,664,821.05x = 64,629,474,144,595,496 - Step 5: Solve for x
x = 64,629,474,144,595,496/292,664,821.05 - Step 6: Final answer
x = 220,831,030.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.